Hash
Computes the hash of a text or a file with MD5, SHA-1, SHA-2 or SHA-3, as lower-case hex.
The Hash action computes a fingerprint (hash) of a text or a file. Use it to compare files without opening them, to detect changes, or to produce the checksum another system asks for.
Add the action
In the Process Designer toolbox, open Converters โบ Cryptographic and pick Hash (or type Hash in the search box).
Inputs and outputs
| Field | Direction | Type | Required | What to put / what you get |
|---|---|---|---|---|
| Input File | Input | File | No* | The file to hash. |
| Input String | Input | Text | No* | The text to hash. Ignored when Input File is given. |
| Hash | Input | Option | Yes | The algorithm: MD5, SHA1, SHA256, SHA3_256, SHA3_384, SHA3_512, SHA384 or SHA512. |
| Result | Output | Text | Yes | The hash as lower-case hexadecimal. |
* Fill one of the two. With both empty, the step fails with Both file and string are null. Please check again the inputs.
Example
| Input | Hash | Result |
|---|---|---|
Input String hello | SHA256 | 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824 |
Input String hello | MD5 | 5d41402abc4b2a76b9719d911017c592 |
Input File notes.txt (content hello), Input String ignored | SHA256 | 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824 |
Good to know
- A text is hashed as UTF-8 bytes, so the result matches the same text hashed by most other tools.
- A file is hashed byte for byte, so a text file and the same text typed in Input String give the same hash.
- MD5 and SHA-1 are fine for checksums, but too weak for security purposes. Prefer SHA-256 or stronger.
- To hash with a secret key (HMAC), use Hash Mac.